1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
2. Taking care not to touch power supply components, pins, leads, or solder connections, remove the
power supply from its bag.
CAUTION: Verify that the direction of the arrow on the power supply handle
matches the direction of airflow in the chassis. Ensure that each power supply you
install in the chassis has the same airflow direction. If you install power supplies
with two different airflow directions, Junos OS raises an alarm, and the status (ALM)
LED blinks amber.
3. Using both hands, place the power supply in the power supply slot on the FRU panel of the switch and
slide it in until it is fully seated and the locking lever slides into place.
Figure 141: Installing a Power Supply in a 1 U QFX5100 Device
QFX5100-48S
RUNNING JUN OS
Figure 142: Installing a Power Supply in a QFX5100-96S Device
NOTE: Each power supply must be connected to a dedicated power source outlet.
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